| APA | KCOS. (2012, February 10). In Acronym Geek. Retrieved 07:07, February 10, 2012, from http://www.acronymgeek.com/KCOS |
| MLA | "KCOS." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/KCOS>. |
| MHRA | 'KCOS', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/KCOS> [accessed 10 February 2012] |
| Chicago | "KCOS", http://www.acronymgeek.com/KCOS (accessed February 10, 2012). |
| CBE/CSE | KCOS [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/KCOS. |
| Bluebook | KCOS, http://www.acronymgeek.com/KCOS (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, KCOS, http://www.acronymgeek.com/KCOS (optional description here) (as of Feb. 10, 2012, 07:07). |
| AMA | KCOS. Acronym Geek. February 10, 2012, 07:07. Available at: http://www.acronymgeek.com/KCOS. Accessed February 10, 2012, 07:07. |